Update, June, 9, 8:51 p.m. | Having been on the run overseas since the weekend, I’m only now catching up with Anthony Watts’s attack on Tom Peterson, one of the authors of a recent National Oceanic and Atmospheric Administration climate paper. The exchange, in which Watts accuses Peterson of prostituting himself and hints at fraud, occurred just before* he’d posted on his friendly meeting with climate campaigner Bill McKibben, described below.

Here’s my reaction:

Any notion that Watts is interested in fostering an atmosphere of civility and constructive discourse evaporates pretty quickly in considering how he handled his questions about that paper. Alternating between happy talk about rooftop solar and slanderous accusations is not constructive or civil.

The climate writer and campaigner Bill McKibben (left) met for a beer in Chico, Calif., with Anthony Watts, a former broadcast meteorologist who runs a blog challenging many aspects of climate change science.Credit WattsUpWithThat.com

Watts described a friendly two-hour trading of very different views on many points of climate change science but also on at least a few areas of common ground on pollution problems and energy choices, including on the value of household photovoltaic systems, which both men have on their homes.

Here’s a short excerpt, focusing on what Watts perceived as areas of agreement:

We both agreed that tackling real pollution issues was a good thing. When I say real pollution issues, I mean things like water pollution, air pollution, Ocean plastics pollution, and other real tangible and solvable problems.

We both agreed that as technology advances, energy production is likely to become cleaner and more efficient.

We both agreed that coal use especially in China and India where there are not significant environmental controls is creating harm for the environment and the people who live there.

We both agreed that climate sensitivity, the response to a doubling of carbon dioxide in the atmosphere, hasn’t been nailed down yet. Bill thinks it’s on the high side while I think it’s on the low side…. [N]either of us thought the number had been correctly defined yet.

We both talked about how nuclear power especially Thorium-based nuclear power could be a solution for future power needs that would provide a stable base electrical grid while at the same time having far fewer problems than the current fission products based on uranium and plutonium.

I don’t think thorium or cold fusion or anything like it is the future of power; I’d wager all things nuclear are mostly relics of the past, in no small part because they cost like sin. But the point I was trying to make is that the new fact in the world is the remarkably rapid fall in the price of renewable energy. That solar panels cost so much less than they did just a few years ago strikes me as a destabilizing factor for anyone’s world view

We both agreed that there are “crazy people” on both sides of the debate and that each of us have suffered personally at the hands of some of the actions of these people (you know who you are). We both spoke of some of the hatred and threats that we have endured over the years, some of which required police intervention.

We both agreed that if we could talk to our opponents more there would probably be less rhetoric, less noise, and less tribalism that fosters hatred of the opposing side.

Please read the full piece here. I checked in with McKibben Monday morning and he said he had nothing more to add beyond what he posted.

It’s refreshing to see such a meeting, however informal, given the level of acrimony that typifies many exchanges in an arena where divisive labels like alarmist and denier have long been tossed around far too carelessly.

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By 2050 or so, the human population is expected to pass nine billion. Those billions will be seeking food, water and other resources on a planet where humans are already shaping climate and the web of life. Dot Earth was created by Andrew Revkin in October 2007 -- in part with support from a John Simon Guggenheim Fellowship -- to explore ways to balance human needs and the planet's limits.